<script setup>
// 获取二级路由的数据
import { getCategoryFilterAPI } from "@/apis/category";
//引入route
import { useRoute } from "vue-router";
const route = useRoute();
//引入ref
import { ref,onMounted } from "vue";
//导入GoodsItem
import GoodsItem from "@/views/Home/components/GoodsItem.vue";                   
//导入getSubCategoryAPI
import { getSubCategoryAPI } from "@/apis/category";


//面包屑导航如安然区域
const filterData = ref({});
const getFilterData = async () => {
  const res = await getCategoryFilterAPI(route.params.id)
  filterData.value = res.result
  console.log(filterData.value);
}
getFilterData()

// tab切换回调
const tabChange = () => {
  console.log('tab切换了', reqData.value.sortField)
  reqData.value.page = 1
  getGoodList()
}
// 获取基础列表数据渲染
const goodList = ref([])
const reqData = ref({
  categoryId: route.params.id,
  page: 1,
  pageSize: 20,
  sortField: 'publishTime'
})
  
const getGoodList = async () => {
  const res = await getSubCategoryAPI(reqData.value)
  console.log(res)
  goodList.value = res.result.items
}
  
onMounted(() => getGoodList())

//滚动触底无线加载
// 加载更多
const disabled = ref(false)
//监听滚动事件
const load = async () => {
  console.log('加载更多数据咯')
  // 获取下一页的数据
  reqData.value.page++
  //再次获取二级分类的数据
  const res = await getSubCategoryAPI(reqData.value)
  // 将下一页的数据追加到goodList中
  goodList.value = [...goodList.value, ...res.result.items]
  // 加载完毕 停止监听
  if (res.result.items.length === 0) {
    disabled.value = true
  }
}

</script>

<template>
  <div class="container ">
    <!-- 面包屑 -->
    <div class="bread-container">
        <el-breadcrumb separator=">">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item :to="{ path: `/category/${filterData.parentId}` }">{{ filterData.parentName }}
      </el-breadcrumb-item>
      <el-breadcrumb-item>{{ filterData.name }}</el-breadcrumb-item>
    </el-breadcrumb>
    </div>
    <!-- 二级路由内容显示区域 -->
    <div class="sub-container" >
      <el-tabs v-model="reqData.sortField" @tab-change="tabChange"> 
        <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
        <el-tab-pane label="最高人气" name="orderNum"></el-tab-pane>
        <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
      </el-tabs>
      <div class="body" v-infinite-scroll="load">
         <!-- 商品列表区域-->
          <!-- 商品列表 -->
          <GoodsItem v-for="goods in goodList" :goods="goods" :key="goods.id" >
          </GoodsItem>
      </div>
    </div>
  </div>

</template>



<style lang="scss" scoped>
.bread-container {
  padding: 25px 0;
  color: #666;
}

.sub-container {
  padding: 20px 10px;
  background-color: #fff;

  .body {
    display: flex;
    flex-wrap: wrap;
    padding: 0 10px;
  }

  .goods-item {
    display: block;
    width: 220px;
    margin-right: 20px;
    padding: 20px 30px;
    text-align: center;

    img {
      width: 160px;
      height: 160px;
    }

    p {
      padding-top: 10px;
    }

    .name {
      font-size: 16px;
    }

    .desc {
      color: #999;
      height: 29px;
    }

    .price {
      color: $priceColor;
      font-size: 20px;
    }
  }

  .pagination-container {
    margin-top: 20px;
    display: flex;
    justify-content: center;
  }


}
</style>